package zh.codegym.task.task04.task0426;

/* 
标签和数字
*/

import java.io.*;
import java.util.Scanner;

public class Solution {
    public static void main(String[] args) throws Exception {
        //在此编写你的代码
        Scanner scanner = new Scanner(System.in);

        /**
         * 是否为偶数
         */
        int number = scanner.nextInt();
        if(number == 0){
            System.out.println("零");
            return;
        }

        boolean isEven = number % 2 == 0;

        if(number > 0){
            if(isEven){
                System.out.println("正偶数");
            }else {
                System.out.println("正奇数");
            }
        }else {
            if(isEven){
                System.out.println("负偶数");
            }else {
                System.out.println("负奇数");
            }
        }
    }
}
